Items to be checked first1. Is the voltage of the power correct? The input voltage shall be rating voltage 10%. The air conditioner may not operate properly if the voltage is out of this range.2. Is the link cable connecting the indoor unit and the outdoor unit linked properly? Please refer to the “wiring diagram” Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.3. When a problem occurs due to the contents illustrated in the table below, it is symptom not related to themalfunction of the air conditioner.

Operation of air conditioner = In COOL operation mode, the compressor does not operate at a room temperature higher than the setting temperature that the indoor fan should operate.In a HEAT operation mode, the compressor does not operate at a room temperature lower than the setting temperature that indoor fan should operate.

Explanation = It happens after a delay of 3 minutes when the compressor is reoperated. The same phenomenon occurs when a power is on.As a phenomenon that the compressor is reoperated after adelay of 3 minutes, the indoor fan is adjusted automatically withreference to a temperature of the air blow.

Operation of air conditioner = Fan speed setting is not allowed in AUTO or DRY mode

Explanation = The speed of the indoor fan is set to low in DRY mode.Fan speed of 3 steps is selected automatically in AUTO mode.

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Air Conditioning providing accurate temperature control,and it reduce the humidity within your home to eliminate the 'stickiness' . Most systems have a dedicated 'dry' mode, where humidity can be reduced without over-cooling the room.